Spring-seat



L. M. REED.

SPRING SEAT.

APPLICATION FILED FEB. 2|. |919. 1,303,962. Patented May 20, 1919.

Skim

I venor.

om B5 UNITED sTATEs PATENT oEEioE.

LEMON 1v1. REED, or CLEVELAND, omo, AssIGNoE To HATTIE E. GYNN, or CLEVELAND,

OHIO.

SPRING-SEAT.

Specicaton of Letters Patent.

Patented May 20, 1919.

Application iled February 21, 1919. Serial N o. 278,423.

To all whom t may concern.' Y

Be it known that I, LEMON M. REED, a citizen of the United States, residing at Clevelandin the county of Cuyaho'gaand State of Ohio,'have inventeda new and useful Spring-Seat, of which the followingisa specification. f Y Y This inventionrelates to improvements in spring-seats more especially designed for use on tractors and other farming machines.

The primary object ofthis invention is to produce an adjustable seat'of the character indicated whichcan not only be readily applied but is simple and durable in construction and can be manufactured with facility and readily maintained in good condition.

With this object in view, and to attain any other object hereinafter appearing, this.

invention consists in certain features of construction, and combinations and relative ar'- rangements of parts, hereinafter described in this specification, pointed out in the claims, and illustrated in the accompanyingkdraw- 1n s. f l(lin said drawings, Figure 1 is a side view of a spring-seat embodying my invention, and portions are broken away and in section iii this figure to reducethe size of the drawing and to more clearly show the construction. Fig. 2 is a transverse'vertical section taken along the line 2 2, Fig. l', looking rearwardly. Fig. 3 is a horizontal section taken along the line 3-3, Fig. 1, looking downwardly.

Referring to said drawings, A indicates the upper portion of a bracket adapted to be-carried by the framework of a tractor or other vehicle or machine at the rear end, and said bracket has a rearwardly *projecting arm 5 on which my improved seat -is shown mounted. I

vSaidseat comprises two vertically spaced and directly oppositely arranged substantially horizontal interchangeable plates B thelower 'ofwhich is shown mounted vdirectly on the bracket-arm 5. Each plate B consists preferably of a singleironcasting. The seat illustrated comprises an even number of substantially vertically arrangedcorresponding helical springs C interposed between the plates B. Said springs are preferably eight in number and support the upper plate from the lower plate. Said springs are shown spaced substantially equidistantly circumferentially of the space between the centralportions of the plates, and preferably two of the springs are arranged di-rectly forwardly 'and rearwardly respectively of the center of said space.

Each plate (see Fig. 2) is provided with two holes 6 which are spaced substantially equidistantly froml the center of the plate and arranged laterally of opposite sides respectively of said center. Each hole 6 in each plate is arranged. in line vertically with a corresponding hole in the other plate, and a vertically arranged guide-pin D extends loosely throughsaid registering holes. Each guide-pin D is encircled by the coils of one of the springs, and each plate is shownprovided intermediately of the pinencircling springs with two bolt-holes 7 whlch extend vertically through the plate and are spaced preferably equidistantly from the center of the plate but arranged at opposite sides respectively of said center. The bolt-holes' 7 `of each plate are'arranged l inline vertically andcorrespond with the different bolt-holes 7 respectively in the otherl plate soas not to interfere with the interchangeability of ,the plates.

Ev indicates Vthe seat-proper of my improved seat and is shown mounted on and covering the upper plate and removably secured to .said plate (see Fig.- 2) by bolts 8 and nuts 9. vThe seat-proper is provided with two bolt-holes 10 'arranged'in' line vertically with the different bolt-holes 7 respectively in the upper plate, and the registeringbolt-holes 7 and 10 are engaged by a-,bolt 8 which has its headcountersunk in the seat-proper and has its shank extending below the plate, and a nut 9 is screwed onto said'shank at the lower or inner face of said plate.

Each :bolt-hole 7 in the lower plate is engagedlseei Fig. 2) by the shank of a bolt 12 ofja clip employed in securing said plate to the bracket-arm 5. *Said bolt 12 has its head overlappingthe `upper or inner face of the lower plate, and its shank extends through 'a bolt-hole 13 formed in the bar 14 of said clip. The bar 14 is next vbelow and arranged transversely of the bottom of the bracket-arm 5 which extends between the two bolts 12, and nuts'15 are screwed onto the vshanks of Asaid bolts at saidibottom. Obviously therefore the lower plate of` my improved seat is` removably clampedv or secured to the bracket-arm 5, and said seat is rendered free to be readjusted endwise of said arm, and consequently forwardly or rearwardly, upon loosening the nuts 15 relative to the bar 14 and secured in the desired f adjustment upon tightening` said nuts.

Each plate (see Fig. 2) is provided at itsy outer face, adjacent each hole 6 in the plate,

with two recesses 16 which are arranged at' opposite sides respectively of said hole and in line endwise and preferably radially of the plate, and the outer of said recesses eX- tendstothe outer circumferential edge of theplate.- Said recesses are engaged by a stop-forming pin 17 which extends transversely of and through the guide-pin D arranged between said recesses and is' removable endwise from said guide-pin. Each guide-pin D is shown flush at its upper end face (seeA Fig. 2) with the outer face of the upper plate and extends below the lower plate. Obviously they pins 17 seated in the upper plate limit descent of the guide-pins Dy independently of the upper plate and are instrumental in supporting said uidepins from said? plate, and said pins 1% and the bottoms of the recesses 16 engaged thereby constitute means. for preventing disconnecf tion of said plate upwardly from said guidepins.l The pins 17 engaging the recessesv 16 in thel lower-plate are instrumental' in pre'- venting displacement of the guideepins D upwardly out of said plate. rI`he lower endv portion of each guide-pin D has live vertically spaced transverse. holes 19v adapted to beengaged by the stop-forming pin 17 carried by saidportion of said guide-pin, and said pin` 17 vis shown engaging'4 one of the intermediate of said holes. Obviously therefore the tension of the springs would be increased or decreased accordingv as the lower stop-forming pins 17 were, in relatively' readjusting the plates, brought into engagement with higher or lower holes in the guide-pins D. l v

Preferably each plate is provided, internally of the adjacent end` portionx of'each pin-encircling spring,l with a= tubular member 20 which surrounds the guide-pin Dl encircled by the coils of said? spring and enlarges the bearing afforded to said pin; Also, each plate (seeFigs. 1 and 3) is provided at the adjacent end of" each spring, save at the adjacent ends of the springs encircling the guide-pins D, with flanges121 extending circ'umferentiallyy of said' spring, and each flange-embraced spring is rendered free to bev removedv frombetween theplates upon the requisite compression ofthe spring toward the lower plate. Ifeight springs were required for a person weigh-ing two hundred' pounds. obviously two springs; and preferably-the most forward spring and the most rearwardfs-pring, could be dispensed WithforI at persolr weighing only about', one

hundred and fifty pounds, 'and the springs next adjacent the guideppinencircling springs, or four springs in all, could be removed for an occupant weighing about one hundred pounds. Of vast importance is the simplicity of construction of my improved seat the component parts of which can be assembled with great facility; Also, the seat-proper E covers the upper end faces of the guide-pins D and the recesses 16 in the upper plate and consequently is helpful in excluding dust and, dirt from said recesses. Also, the' upperstop-forming pins 17 and the side walls-of the recesses: 16 in the upper plate are arranged to substantially prevent circumferential displacement of the guide pins D, and hence the lower stopforming pinsl 17 remain in alinement vertically with the recesses 16 inthe lower plate should the guide-pins, during the descent of the' upper plate toward the lower plate, be lowered far enough to remove vthe'lastmentioned stop-,formingfpins from the lastmentioned recesses..

What I claim is- 1. In a spring-seat, two vertically spaced and oppositely arranged substantially hori zontal plates the lower of which? is adapted to bef mounted on a supporting bracket, a seat-proper mounted on and secured tothe upper plate, an even number` of Vsubstantially- 'vertically arranged helical springs interposed between the: plates and supporting the upper plate' from the lower plate and spaced circumferentially of the space between the central :portions ofY the plates, and means for g-uidingthe upper plate during'any movement of said plate toward the lower plate, each plate being provided at the adjacent end of each spring, save at the adjacent endsoftwo oppositely arranged springs, with flanges extending circumferentially of said spring, and Seach flange-surrounded spring being removable f-rombe-A tween the plates upon requisite' compression ofthe springtoward the lower plate.

2'. In a spring-seat, the combination, with two vertically spaced `and oppositely arranged substantially horizontal platesthe lower of which isadapted to be mounted von aisupportingbraeket andthe upper ofwhich is adapted to carry the seat-proper, and substantially vertically' arranged helical springs interposed between the plates and spaced: circumferentially of the space'between the central:` portions of thev plates, each plate being provided withv .two holes extending yvertically* through they plate at opposite sides respectively yof the center of the plate, and each of said holes being arranged inline vertically with aE corresponding hole'v in the other plate, of' two guidepins engaging the registering holes inthe plates andeachencircled bythe coils, of a spring, means forV preventing displacement of the pins upwardly out of the lower plate and means for preventing disconnection of the upper plate from said pins.

3. In a spring-seat, the combination, with two vertically spaced and oppositely arranged substantially horizontal plates the lower of which is adapted to be mounted on a supporting bracket and the upper of which is adapted to carry the seat-proper, and substantially vertically arranged helical springs interposed 'between the plates, each plate being provided with spaced holes extending vertically through the plate, and each of said holes being arranged in line vertically with a corresponding hole in thev other plate, of guide-pins extending through the registering holes in the plates and supported from the upper plate, two of the springs having their coils encircling said pins, and each plate being provided at the adjacent ends of the other springs with flanges extending circumferentially of the last-mentioned springs.

4. In a spring-seat, the combination, with two vertically spaced and oppositely arranged substantially horizontal plates the upper of which is adapted to carry the seatproper and the lower of which is adapted to be mounted on a supporting bracket, and substantially vertically arranged helical springs interposed between the plates, each plate having two holes which extend vertically through the plate at opposite sides respectively of the center of the plate and being provided at its outer face, adjacent each hole, with two recesses arranged at opposite sides respectively of said hole and in line endwise, and each of said holes in each plate being arranged in line endwise with a corresponding hole in the other plate, of guide-pins engaging the registering holes in the plates, and each extending substantially to the outer face of the upper plate and below the lower plate, and a pin engaging the aforesaid recesses and extending through the guide-pin arranged between said recesses.

5. In a springseat, the combination, with two vertically spaced and oppositely arranged substantially horizontal plates the lower of which is adapted to be mounted on a supporting bracket, and substantially vertically arranged helical springs interposed between the plates, each plate having two holes which extend vertically through'the plate at opposite sides respectively of the center of the plate and being provided at its outer face, adjacent each hole, with two recesses which are arranged at opposite sides respectively of the hole and in line endwise, and each of said holes in each plate being arranged in line endwise with a corresponding hole in the other plate, of substantially vertical guide-pins engaging the registering holes in the plates, a pin engaging the aforesaid recesses and extending through the guide-pin arranged between said recesses, and the seat-proper covering the upper end faces of the guide-pins and the recesses in the upper plate and removably secured to said upper plate.

6. In a spring seat, the combination, with a supporting bracket having a rearwardly projecting arm, of two vertically spaced and oppositely arranged substantially horizontal plates the upper of which is adapted to carry the seat-proper and the lower of which is mounted on said arm, substantially vertically arranged helical springs interposed between t-he plates, the lower plate being adjustable endwise of said arm, and means for securing said lower plate to said arm in the desired adjustment of the plate.

In testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

LEMON M. REED. Witnesses:

BAsIL F. JOHNSON, W. H. McDoNNELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

